Gravity field models derived from Swarm GPS data

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F16%3A00470229" target="_blank" >RIV/67985815:_____/16:00470229 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1186/s40623-016-0499-9" target="_blank" >http://dx.doi.org/10.1186/s40623-016-0499-9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1186/s40623-016-0499-9" target="_blank" >10.1186/s40623-016-0499-9</a>

Result language

angličtina

Original language name

Gravity field models derived from Swarm GPS data

Original language description

This study focuses on the gravity field solutions estimated from Swarm global positioning system (GPS) data, produced by the Astronomical Institute of the University of Bern, the Astronomical Institute (ASU, Czech Academy of Sciences) and Institute of Geodesy (IfG, Graz University of Technology). The three sets of solutions are based on different approaches, namely the celestial mechanics approach, the acceleration approach and the short-arc approach, respectively. We derive the maximum spatial resolution of the time-varying gravity signal in the Swarm gravity field models to be degree 12, in comparison with the more accurate models obtained from K-band ranging data of GRACE. We demonstrate that the combination of the GPS-driven models produced with the three different approaches improves the accuracy in all analysed monthly solutions, with respect to any of them. In other words, the combined gravity field model consistently benefits from the individual strengths of each separate solution. The improved accuracy of the combined model is expected to bring benefits to the geophysical studies during the period when no dedicated gravimetric mission is operational.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10508 - Physical geography

Project

<a href="/en/project/LG14026" target="_blank" >LG14026: Calibration of accelerometers onboard SWARM satellites by means of kinematic orbits and gravity field models</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Earth, Planets and Space

ISSN

1880-5981

e-ISSN

—

Volume of the periodical

—

Issue of the periodical within the volume

1

Country of publishing house

DE - GERMANY

Number of pages

15

Pages from-to

"127/1"-"127/15"

UT code for WoS article

000379993900004

EID of the result in the Scopus database

2-s2.0-84979210014